144384434 has 16 divisors (see below), whose sum is σ = 235516248. Its totient is φ = 66108672.

The previous prime is 144384419. The next prime is 144384503. The reversal of 144384434 is 434483441.

It can be written as a sum of positive squares in 4 ways, for example, as 131171209 + 13213225 = 11453^2 + 3635^2 .

It is a junction number, because it is equal to n+sod(n) for n = 144384394 and 144384403.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56129 + ... + 58644.

Almost surely, 2^144384434 is an apocalyptic number.

144384434 is a deficient number, since it is larger than the sum of its proper divisors (91131814).

144384434 is a wasteful number, since it uses less digits than its factorization.

144384434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114829.

The product of its digits is 73728, while the sum is 35.

The square root of 144384434 is about 12016.0074067887. The cubic root of 144384434 is about 524.6143005339.

The spelling of 144384434 in words is "one hundred forty-four million, three hundred eighty-four thousand, four hundred thirty-four".